#include "junix.h"

int main(int argc, char **argv)
{
	int c;
	while( (c=getopt(argc,argv,"a:b:c:"))!=-1)
	{
		switch (c)
		{
			case 'a':
				printf("a\n");
				break;
			case 'b':
				printf("b\n");
				break;
			case 'c':
				printf("c\n");
				break;
		}
	}

	return 0;
}

